COLO.Science · Technical Specification
ORSHA21
Compact Orbital Shaker · Round Shaking Motion · 20 mm Amplitude · 0–300 rpm
ORSHA21 is a compact laboratory orbital shaker designed for routine shaking, mixing and gentle sample agitation on the laboratory bench.
With round shaking motion, 20 mm amplitude, 0–300 rpm speed range, PID LCD control and aluminium oxide tray,
ORSHA21 is suitable for Erlenmeyer flasks and beaker-based workflows where a compact, easy-to-use shaking platform is required.
0–300 rpm
±1 rpm accuracy
20 mm amplitude
PID LCD
Soft-touch buttons
≤5 kg platform load
320 × 320 mm platform
SKU PRO3149
ORSHA21 · compact laboratory orbital shaker · main unit
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ORSHA21 · Compact Orbital Shaker
Technical data sheet · Informational document · Controlled electronic document
Manufacturer contact: sales@colo.si · +386 64 222 724
Manufacturer contact: sales@colo.si · +386 64 222 724
ORSHA21 · technical specification
Compact orbital shaker for routine laboratory shaking and mixing workflows
round shaking
0–300 rpm
20 mm amplitude
PID LCD
0–9999 min timer
— Compact bench-top shaking platform for Erlenmeyer flask and beaker workflows
📋 Technical Specifications · ORSHA21
Motion and performance
| Parameter | Specification |
|---|---|
| Model | ORSHA21 |
| Mode | Shaking round |
| Shaking amplitude | 20 mm |
| Speed range | 0–300 rpm |
| Rotation speed accuracy | ±1 rpm |
| Timer settings | 0–9999 minutes |
| Maximum platform load | ≤5 kg |
Platform and vessel capacity
| Parameter | Specification |
|---|---|
| Platform size | 320 × 320 mm |
| Tray | Aluminium oxide |
| Beaker / flask fixing method | Bar fixing method |
| Capacity | 100 ml × 12 / 250 ml × 8 / 500 ml × 6 |
Control, body and operation
| Parameter | Specification |
|---|---|
| Control method | PID LCD |
| Input method | Soft-touch button |
| Display | LCD |
| Shell material | ABS plastic |
| Operation functions | Running with setting data and time, automatically changing direction of rotation, automatic shutdown, quick start and stop |
| SKU | PRO3149 |
Electrical and dimensions
| Parameter | Specification |
|---|---|
| Rated power | 90 W |
| Power supply | 220 V ±10%, 50/60 Hz |
| Instrument size W × D × H | 365 × 450 × 160 mm |
| External / packing size W × D × H | 415 × 500 × 210 mm |
| NW / GW | 10 / 15 kg |
📐 Specification Notes
Power value verification: the supplied data contains both 90 W and 1500 W. This sheet uses 90 W as the rated power for the compact shaker and flags 1500 W for final verification before publication.
Terminology correction: the source line “Bakers fixing method” is interpreted as beaker / flask fixing method, using a bar-based fixing system.
Speed range0–300 rpm
Amplitude20 mm
Platform load≤5 kg
Timer0–9999 min
Values are prepared from the supplied ORSHA21 data. Power value and final packaging terminology should be confirmed before official catalogue publication or quotation.
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⚙️ Operation, workflow and application notes
Why ORSHA21 is practical
Compact shaker platform: suitable for routine shaking and mixing workflows where a small bench-top footprint is preferred.
Round shaking motion: supports gentle and repeatable orbital-style sample movement for flasks and beakers.
Wide speed range: 0–300 rpm allows users to adjust shaking intensity according to sample type and vessel configuration.
Simple interface: PID LCD control and soft-touch buttons support straightforward daily operation.
Operation functions
Timed operation: running with setting data and time supports repeatable routine processes.
Automatic direction change: automatic change of rotation direction helps improve mixing consistency in selected workflows.
Automatic shutdown: timer-based shutdown supports safer and more convenient laboratory operation.
Quick start and stop: useful for practical daily sample preparation and short shaking procedures.
Typical applications
Routine mixing: general laboratory mixing and sample agitation in small flasks or beakers.
Sample preparation: gentle shaking for preparation steps where controlled platform movement is required.
Education and training: suitable for teaching laboratories and compact demonstration setups.
Quality-control laboratories: practical support device for repeatable bench-top shaking tasks.
Vessel capacity reference
| Vessel volume | Capacity | Note |
|---|---|---|
| 100 ml | 12 vessels | For smaller-volume shaking workflows |
| 250 ml | 8 vessels | Routine flask / beaker configuration |
| 500 ml | 6 vessels | Higher vessel volume with reduced count |
Selection guidance
Choose ORSHA21 when the main requirement is a compact shaker for up to 5 kg platform load and moderate vessel capacity.
For larger flask capacities, a higher-capacity orbital shaker family such as ORSHA344 / ORSSHA344 should be considered.
Before ordering, confirm vessel type, diameter, working volume, required shaking speed and fixing method.
Configuration checklist
Vessel volume: 100 ml, 250 ml or 500 ml configuration.
Platform load: total load should remain within ≤5 kg.
Speed requirement: select operating speed within 0–300 rpm.
Power supply: confirm local supply compatibility with 220 V ±10%, 50/60 Hz.
Final vessel compatibility depends on vessel geometry, fixing bar arrangement, liquid working volume and selected speed range.
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🖼️ Visuals, ordering data and support
Ordering information
| Item | Value |
|---|---|
| Model | ORSHA21 |
| SKU | PRO3149 |
| Product type | Compact laboratory orbital shaker |
| Motion mode | Shaking round |
| Speed range | 0–300 rpm |
| Platform size | 320 × 320 mm |
| Maximum load | ≤5 kg |
| Capacity | 100 ml × 12 / 250 ml × 8 / 500 ml × 6 |
Technical summary
Control: PID LCD with soft-touch button input.
Platform: aluminium oxide tray with bar-based fixing method.
Operation: timed running, automatic direction change, automatic shutdown, quick start and stop.
Construction: ABS plastic shell, compact bench-top footprint.
Manufacturer and support
COLO Lab Experts
Polje ob Sotli 4, SI-3255, Slovenia
Selection guidance: ORSHA21 is suitable for laboratories that need a compact orbital shaker for routine mixing,
shaking and sample preparation. For final selection, confirm vessel dimensions, load, liquid volume, speed range and fixing arrangement.
Quick contact
COLO.Science · Compact shaking support
Request a quotation or confirm the ORSHA21 vessel configuration
Send us the required vessel volume, number of vessels per run, approximate working liquid volume and preferred operating speed. COLO.Science can help confirm whether ORSHA21 or a larger orbital shaker configuration is the best fit for your laboratory.
Specification disclaimer:
The information in this document is prepared from the supplied ORSHA21 product data and image reference. Please verify the final power value, vessel fixing terminology and packaging dimensions before official catalogue publication, quotation issue or print production.
The information in this document is prepared from the supplied ORSHA21 product data and image reference. Please verify the final power value, vessel fixing terminology and packaging dimensions before official catalogue publication, quotation issue or print production.
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